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Buick engine repair questions and answers

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  • rod
    rod - 2002 Buick Century - Engine - 1/8/2014
    Fill the radiator and one to two days later the fluid is low.
    I don't see any visible leaks. were does it go so fast?
     
    • HouseCallAuto
      1/8/2014 HouseCallAuto
      Check and confirm that it is not going into the oil. Pull the dipstick and make sure oil looks normal like you always ]saw it, not like a milkshake color. Besides that, you either have a leak (most likely) or you are burning it from a bad head gasket (least likely), and I'll bet the leak is the intake manifold gaskets at the mating between the manifold and the heads at the angle. A water pump leak is also high on the list.
  • Denys Templeton
    Denys Templeton - 1999 Buick Park Avenue - Engine - 1/4/2014
    When hot engine starts but then dies
    Have changed every component in in this category the last suggestion was problem with vaccum. Any suggestions on this theory?
     
    • HouseCallAuto
      1/4/2014 HouseCallAuto
      read fault codes and post them here. After reading fault codes and then writing the codes down (remember I said after) try unpl,ugging the mass air flow sensor connector and see if it does not stall now with it unplugged. If it seems to temporarily solve the stalling hot problem with it disconnected then replace the MAF sensor.
  • AutoMD Member
    AutoMD Member - 2005 Buick Rendezvous - Engine - 1/4/2014
    Will a clogged heater core cause my vehicle to overheat?
    Trying to diagnose the problem. No heat, engine overheats and there is a slight coolant leak some place near or behind the alternator. All this happened at the same time. The large rad hoses - the lower is slightly warm but the upper is cold. I was thinking ...
     
    • Jimm
      1/4/2014 Jimm
      Yes, the clogged heater core would contribute to the overheating condition - due to the restricted coolant flow.
      However, the heater core (coolant circulation) is 'off' during warm summer months - so there still may be other issues, such as a faulty thermostat, clogged / restricted radiator hoses, clogged / restricted radiator.
      One simple test to perform - in order to test the radiator flow is based on gravity. Simply drain the radiator of coolant as the first step, then with the lower radiator hose disconnected (open to drain) refill the radiator using plain water - and observe how fast (or slow) the radiator empties itself based on gravity. If very slow drainage - then suspect a clogged radiator.

      If clogged radiator / radiator tubes is an issue - usually less expense to simply replace the radiator, rather than to repair (especially by the time the labor is calculated).
      The parts are readily available; try these on-line sources; www.partsgeek.com, www.rockauto.com, www.discountautoparts.com, www.autopartswarehouse.com, www.jcwhitney.com - to list only a few possibilities. In fact they (RockAuto) list the radiator from around $78.00, and the heater core from around $40.00 for your vehicle.
    • John's Auto Repair
      Since it only branches off to the engine and water pump, it shouldn't cause an overheating problem.
      John's Auto Repair
      1/4/2014 AutoMD Member
      That was my train of thought and the reason for questioning this. If there is no circulation through the motor then it would overheat and you wouldn't have any heat. Will look at thermostat and rad to make sure there is nothing plugged first. Thanks!
  • AutoMD Member
    AutoMD Member - 1998 Buick Regal - Engine - 1/3/2014
    Why does the OBD code P0507 keep coming on in my car? I got everything associated with this code done.
    I got the intake cleaned out, replaced the mass airflow sensor and got a new intake gasket .
     
  • AutoMD Member
    AutoMD Member - 1998 Buick Regal - Engine - 1/1/2014
    Dash lights dim, then brighten
    At first car wouldn't start - just got clicking sound. Jump started it, let it run for a bit. When I started it the next time, the dash lights were very dim. Then after a few minutes, they got bright. It is VERY cold here. This just started happening. No other ...
     
    • HouseCallAuto
      1/1/2014 HouseCallAuto
      There is a bad alternator
    • Jimm
      1/1/2014 Jimm
      The parts are readily available; try these on-line sources; www.partsgeek.com, www.rockauto.com, www.discountautoparts.com, www.autopartswarehouse.com, www.jcwhitney.com - to list only a few possibilities. In fact they (RockAuto) list the alternator from around $78.00 for your vehicle.
  • Denys Templeton
    Denys Templeton - 1999 Buick Park Avenue - Engine - 12/29/2013
    Engine idle not working properly
    When engine is cold or cool starts O.K. When it is hot it will start O.K. but will stop. Have had 4 different Techs look at this and they have not been able diagnose prob.
     
    • HouseCallAuto
      12/29/2013 HouseCallAuto
      So if I understand this correct - you are saying that the engine has a stalling problem, it shuts off without warning? The two most common causes of stalling on your vehicle are the mass air flow sensor and / or the crankshaft position sensor. That being said stop paying diagnostic labor and just have both of these parts replaced either together or one at a time. Odds of solving this are greater than 99% if replacing both parts.
  • Al snyder
     
    • HouseCallAuto
      12/29/2013 HouseCallAuto
      What were the symptoms with the old cluster that you removed?
  • guy
    guy - 1994 Buick LeSabre - Engine - 12/29/2013
    My 1994 buick lesabre has had off and on starting problem, have replaced fuel pump map sensor,fuel pressure regulator,
    iac,sometimes when you start her she pulsates,service engine light flashes off and on and interior lights pulsate and when you turn headlights on pulsating stops, can also hear clicking under hood during pulsating, had alternator checked they said it was ok, had car ...
     
    • HouseCallAuto
      12/29/2013 HouseCallAuto
      Check the voltage at the battery DURING the pulsating and if it is not about 14 or more volts the alternator is junk.
  • AutoMD Member
    AutoMD Member - 1993 Buick Park Avenue - Engine - 12/24/2013
    What causes oil pressure to go down.
    I replaced the oil pump kit and oil assembly unit
     
    • CVO
      12/24/2013 CVO
      Oil galleries could have been partially plugged up with oil residues and they restricted the oil flow.
      Check the oil pressure switch for their reading accuracy.
  • AutoMD Member
    AutoMD Member - 1999 Buick Regal - Engine - 12/23/2013
    Intermittenly wont come out of park
    some times car wont come out of park clicking w/ foot on brake and same w/ thumb on button on shifter in console. shut off ing. sw. take key out and in several times car starts and drives fine.I have 2 keys both test same w/ ohm meter. also w/ driving engine will ...
     
    • HouseCallAuto
      12/23/2013 HouseCallAuto
      Same cause as my answer in your other post.
      HouseCallAuto
      1/2/2014 AutoMD Member
      you were right the ing. sw. was the fix. thanx for the help.
  • AutoMD Member
    AutoMD Member - 1999 Buick Regal - Engine - 12/23/2013
    Engine stalls when turn signal is used. when i try to restart the car acts as if i have wrong chip in key
    car has 145k miles just put ing. mod. 2 months ago. sometimes the car will start fine but wont come out of park, if i shut off engine take key in and out a couple times car will start and drive fine, until i put turnsignal on then engine dies and wont restart, acts ...
     
    • HouseCallAuto
      12/23/2013 HouseCallAuto
      You have a faulty ignition switch. probability here is nearly 100%.
  • AutoMD Member
    AutoMD Member - 2002 Buick Century - Engine - 12/18/2013
    Car runs rough, has a p0300 engine code. Can someone advise me as to how to proceed testing?
    The car seems to run very well when cold, but smells a little like gas. Once it warms up it has a random misfire, and runs really rough at idle. It performs very well at freeway speeds. the first thing I did was changed the plugs and wires, I also tested the ...
     
    • HouseCallAuto
      12/17/2013 HouseCallAuto
      Is it always #5 cylinder that you can view misfiring when cold or does it change cylinders sometimes?
    • AutoMD Member
      12/17/2013 AutoMD Member
      From morning to morning it has varied. The first cold test was #5 all the time. Then after it warmed up the misfire moved around between the cylinders. this morning it was number one on the cold start that was missing.
    • HouseCallAuto
      12/17/2013 HouseCallAuto
      sometimes the egr valve builds up deposits inside it that do not let the valve close completely and that would give you both a rough idle and P0300 so remove the egr valve and use any piece of thin metal (once I used a piece of a metal can) and temporarily block off the ports by placing the flat metal under the egr and see if the idle smooths out or not after starting it. If it still idles rough after running it and appears unchanged, remove the metal block off plate and re-install the egr.
    • AutoMD Member
      12/18/2013 AutoMD Member
      There may be some problem with your engine. So you can have a look at this ecu tuning site http://www.obd2life.com/ecu-tuning-tool-c-88.html , hope can help.
  • Cybage QA
    Cybage QA - 2010 Buick Enclave - Engine - 12/16/2013
    Engine making noise
    Engine making noise
     
    0 answer
  • Kennajp
    Kennajp - 1996 Buick Park Avenue - Engine - 12/14/2013
    What is the cause and cost to repair a Radiator leak looks like chocolate milk & strong fuel smell
    175k, radiator leak on the driver side of the radiator looks like chocolate milk. Has been present for about 3 weeks. It just dumps out whenever I stop the car. Also have a VERY STRONG gasoline odor that is present when both driving and not driving the car. Has been ...
     
    • Jimm
      12/14/2013 Jimm
      The issue is maybe not with the radiator, but the 'milk' appearance indicates that engine oil is mixing with coolant inside the engine. This often describes a cylinder head gasket leak - more serious than simply replacing the radiator. Have an inexpensive compression test performed to check for the engine sealing integrity.

      The fuel smell and leak is resolved by replacing the leaking fuel line - fuel flexible hose. The parts are readily available; try these on-line sources; www.partsgeek.com, www.rockauto.com, www.discountautoparts.com, www.autopartswarehouse.com, www.jcwhitney.com - to list only a few possibilities.


  • Kennajp
    Kennajp - 1996 Buick Park Avenue - Engine - 12/14/2013
    What is the cost to repair a leaking radiator and a bad fuel leak?
    175k, radiator leak on the driver side of the radiator looks like chocolate milk. Has been present for about 3 weeks. It just dumps out whenever I stop the car. Also have a VERY STRONG gasoline odor that is present when both driving and not driving the car. Has been ...
     
    • Jimm
      12/14/2013 Jimm
      The issue is not with the radiator, but the 'milk' appearance indicates that engine oil is mixing with coolant inside the engine. This describes a cylinder head gasket leak - more serious than simply replacing the radiator.
      The fuel smell and leak is resolved by replacing the leaking fuel line - fuel flexible hose. The parts are readily available; try these on-line sources; www.partsgeek.com, www.rockauto.com, www.discountautoparts.com, www.autopartswarehouse.com, www.jcwhitney.com - to list only a few possibilities.
 
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